David Tennant's new British comedy drama, There She Goes, continues tonight on BBC Four at 10pm.

The five part series centres on a severely learning disabled nine year-old girl Rosie (Miley Locke), her dad Simon (David Tennant), mum Emily (Jessica Hynes) and brother Ben (Edan Hayhurst).All the stories and characters are drawn from the real life experience of writer Shaun Pye, whose daughter was born in 2006 with an extremely rare and to date undiagnosed chromosomal disorder. Each episode shines a light on day to day life with Rosie - unique experiences from simply trying to take her to the park to trying to explain that every day isn’t her birthday. A second timeline set in 2006 shows the effect having a severely disabled child had on the family unit, how it threatened to disintegrate but ultimately brought them even closer.


Episode 4: The Wrong Grandad.



Simon’s (David Tennant) step dad, Grandad John (Philip Jackson) and Nana (Jo Cameron Brown) want to take Ben (Edan Hayhurst) away over the summer. Simon and Emily (Jessica Hynes) want to know, why not Rosie (Miley Locke)?

While Simon and Emily enjoy a rare night at the pub, at home Rosie successfully has her tea, enjoys a chaos-free bath and goes to bed without an iPad. When Simon and Emily return home they realise that something has gone wrong and some truths are revealed.

In the earlier timeline, Simon and Emily take the kids to Grandad John’s for Christmas, but their relationship is at breaking point. As Emily sinks to her lowest point, it’s Grandad John that finally gives her the support she needs.